Question

Mohamed by 31 cups of coffee each week. If a cup of coffee cost D dollars and Mohammed by approximately the same number of coffee each day, Which would be a mathematical way to express the amount of money the Mohamed spend on coffee each day?

Answer 1

31 Cups of coffee each wee
Approx 4 or more per day
Which means he buys coffe worth 4D per day ..

Answer 2

`(31D)/(7)`

Explanation:

Given,

The number of cups bought by Mohamed in each week = 31,

Since, he buys approximately the same number of coffee each day,

Also, 1 week = 7 days,

So, the number of cups bought in one day =
`(31)/(7)`

If D represents the cost of each cup of coffee,

Thus, the spending on coffee each day =
`(31)/(7)* D`

`=(31D)/(7)`

Which is the required mathematical way to express.